– on brake shoes on the one hand oil got; – partially or the working brake cylinder is completely jammed; – on the different parties brake shoes with different material of friction are used; – not coordinated brake disks; – uneven wear of tires of the car from the different parties; – there is an air at brake system.

Softness of a pedal when braking:

– new brake shoes were not completely earned extra; – bolts of fastening of the main brake cylinder are not clamped; – strong wear of brake drums.

By pressing a pedal of a brake against the stop brakes do not work:

– the leak in hydraulic system interfering transfer of pressure from the main brake cylinder to working brake cylinders; – consolidations of pistons of the main brake cylinder are worn-out. The vacuum amplifier of brakes does not work:

– the vacuum hose is disconnected or is not tight; – the unilateral vacuum valve is faulty or incorrectly connected; – internal defect of the amplifier of brakes.